This article addresses the most frequently asked questions about integrations and APIs in Personio.
Why is the Create custom integration button not visible in my account?
Creating custom API credentials requires the Core Pro plan. This is a plan restriction, not an access rights issue. Having an Administrator role gives you the correct access rights, but it doesn't include Core Pro features. If the Create custom integration button isn't visible in Marketplace > Connected Integrations, check your plan in Settings > Account & support > Subscription & billing. If you're on Core, you need to upgrade to Core Pro to access this feature.